Learning PHP Data Objects
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- An overview of PDO
- Creating a database and connecting to it
- Error Handling
- Advanced features
Book DetailsLanguage : English
Paperback : 188 pages [ 235mm x 191mm ]
Release Date : August 2007
ISBN : 1847192661
ISBN 13 : 9781847192660
Author(s) : Dennis Popel
Topics and Technologies : All Books, Web Development, Open Source, PHP
Table of Contents
Chapter 1: Introduction
Chapter 2: Using PHP Data Objects: First Steps
Chapter 3: Error Handling
Chapter 4: Prepared Statements
Chapter 5: Handling Rowsets
Chapter 6: Advanced PDO Usage
Chapter 7: An Advanced Example
Appendix A: Introduction to OOP in PHP5
Download the code and support files for this book.
Please let us know if you have found any errors not listed on this list by completing our errata submission form. Our editors will check them and add them to this list. Thank you.
Errata- 1 submitted: last submission 18 Feb 2014
The code line in the code snippet of page 57 which is
"$sql = "UPDATE books SET title=" . $conn>quote($_POST['title'])"
"$sql = "UPDATE books SET title=" . $conn->quote($_POST['title'])"
What you will learn from this book
This book covers:
- An overview of the technology
- Getting started with PDO
- Error handling, prepared statements, and handling rowsets
- Advanced features, like getting column metadata and setting connection parameters with examples
Chapter 1 gives an overview of PDO along with a few features like single interface for creating a connection, connection strings, uniform statement methods, and use of exceptions and a singe system of error codes.
Chapter 2 helps to get you started with PDO, by creating sample database and then by creating a connection object. It also introduces PDOStatement classes.
Chapter 3 deals with various error handling processes and their uses.
Chapter 4 is about prepared statements. It deals with using prepared statements without binding values, binding a variable and a parameter to a prepared statement, and using LOBs as streams.
Chapter 5 talks about handling rowsets. It covers different ways to retrieve multiple rows. Scrollable cursors, and MySQL unbuffered queries and closing the cursor along with multiple queries, and rowsets are also explained.
Chapter 6 talks about advanced uses of PDO, and includes setting connection parameters, transactions, and methods of PDO and PDOStatement class.
Chapter 7 gives an example where creation of the method part of MVC application is discussed.
Appendix explains the object-oriented features like inheritance, encapsulation, polymorphism, and exception handling.
PDO is lighter, faster, and more powerful than existing PHP data abstraction interfaces. PDO is a common interface to different databases that must be used with a database-specific PDO driver to access a particular database server: the PDO extension does not provide a database abstraction by itself; it doesn't rewrite SQL, emulate missing database features, or perform any database functions using by itself. It performs the same role as other classic database abstraction layers such as ODBC and JDBC: it's a query abstraction layer that abstracts the mechanism for accessing a database and manipulating the returned records; each database driver that implements the PDO interface can also expose database-specific features as regular extension functions. ¬ PDO ships with PHP 5.1, and is available as an extension for PHP 5.0; it requires the new object-oriented features of PHP 5, and cannot run with earlier versions of PHP.
This book will teach you how to use the PDO, including its advanced features. Readers need to be aware of the basics of data abstraction and should be familiar with PHP.
This book starts with an overview of PHP Data Objects (PDO), followed by getting started with PDO. Then it covers error handling, prepared statements, and handling rowsets, before covering advanced uses of PDO and an example of its use in an MVC application. Finally an appendix covers the new object-oriented features of PHP 5.
This book will guide you through the data layer abstraction objects in PHP.
This book describes the topic first and then gives step-by-step instructions on how to go about a particular example.